公开(公告)号：US4575403A

公开(公告)日：1986-03-11

申请号：US616377

申请日：1984-06-01

申请人： Harvey Rosenhouse ,  Jeffrey C. Dore

发明人： Harvey Rosenhouse ,  Jeffrey C. Dore

IPC分类号： B01D3/10 ,  B01D3/14 ,  C01B25/047

CPC分类号： B01D3/14 ,  B01D3/10 ,  C01B25/047

摘要： A continuous process for reducing the arsenic content of phosphorus is described in which the impure phosphorus is continually passed through a heat exchanger and heated to vaporize a portion of the phosphorus at a temperature not above 200.degree. C., separating the vaporized phosphorus in a disengaging zone under subatmospheric pressure and introducing it into a fractionating zone under subatmospheric pressure, fractionating the phosphorus from the less volatile arsenic, condensing under subatmospheric pressure low-arsenic phosphorus rising from the fractionating zone, returning a portion of the low-arsenic phosphorus condensate as reflux to the column, removing high-arsenic liquid phosphorus as bottoms from the fractionating zone, and recovering the remaining portion of low-arsenic phosphorus condensate as product.

摘要翻译： 描述了用于降低磷的砷含量的连续方法，其中不纯的磷不断地通过热交换器并在不高于200℃的温度下加热以蒸发一部分磷，将蒸发的磷分离出来 在低于大气压的压力下将其引入分馏区，从较不易挥发的砷中分离出磷，在低于大气压的低砷压力下从分馏区上升冷凝，将一部分低砷磷缩合物返回 从塔中除去高砷液态磷作为塔底馏分，回收剩余部分的低砷磷凝析物作为产物。

公开(公告)号：US4483746A

公开(公告)日：1984-11-20

申请号：US385144

申请日：1982-06-04

申请人： Harvey Rosenhouse ,  Jeffrey C. Dore

发明人： Harvey Rosenhouse ,  Jeffrey C. Dore

IPC分类号： B01D3/10 ,  B01D3/14 ,  C01B25/047

CPC分类号： B01D3/10 ,  B01D3/14 ,  C01B25/047 ,  Y10S203/11

摘要： A continuous process for reducing the arsenic content of phosphorus is described in which the impure phosphorus is continually passed through a heat exchanger and heated to vaporize a portion of the phosphorus at a temperature not above 200.degree. C., separating the vaporized phosphorus in a disengaging zone under subatmospheric pressure and introducing it into a fractionating zone under subatmospheric pressure, fractionating the phosphorus from the less volatile arsenic, condensing under subatmospheric pressure low-arsenic phosphorus rising from the fractionating zone, returning a portion of the low-arsenic phosphorus condensate as reflux to the column, removing high-arsenic liquid phosphorus as bottoms from the fractionating zone, and recovering the remaining portion of low-arsenic phosphorus condensate as product.

摘要翻译： 描述了用于降低磷的砷含量的连续方法，其中不纯的磷不断地通过热交换器并在不高于200℃的温度下加热以蒸发一部分磷，将蒸发的磷分离出来 在低于大气压的压力下将其引入分馏区，从较不易挥发的砷中分离出磷，在低于大气压的低砷压力下从分馏区上升冷凝，将一部分低砷磷缩合物返回 从塔中除去高砷液态磷作为塔底馏分，回收剩余部分的低砷磷凝析物作为产物。

公开(公告)号：US4713228A

公开(公告)日：1987-12-15

申请号：US926490

申请日：1986-11-04

申请人： Jonathan F. Shute ,  Harvey Rosenhouse

发明人： Jonathan F. Shute ,  Harvey Rosenhouse

IPC分类号： B01J19/00 ,  C01B25/12 ,  C01B25/20

CPC分类号： C01B25/12 ,  B01J19/0013 ,  C01B25/20 ,  B01J2219/00081 ,  B01J2219/00157 ,  Y02P20/124

摘要： Heat is recovered from the phosphorus combustion chamber of a furnace phosphoric acid plant by placing in the combustion chamber a heat exchange surface having a protective meta acid coating thereon. Pressurized water can be used as a heat exchange fluid.

摘要翻译： 通过在燃烧室中放置在其上具有保护性酸性涂层的热交换表面，从炉磷酸设备的磷燃烧室回收热量。 加压水可以用作热交换流体。